Eric W. Biederman 38fd525a4c exit: Factor thread_group_exited out of pidfd_poll ... Create an independent helper thread_group_exited which returns true when all threads have passed exit_notify in do_exit. AKA all of the threads are at least zombies and might be dead or completely gone. Create this helper by taking the logic out of pidfd_poll where it is already tested, and adding a READ_ONCE on the read of task->exit_state. I will be changing the user mode driver code to use this same logic to know when a user mode driver needs to be restarted. Place the new helper thread_group_exited in kernel/exit.c and EXPORT it so it can be used by modules. Link: https://lkml.kernel.org/r/20200702164140.4468-13-ebiederm@xmission.com Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Tested-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>		2020-07-07 11:58:17 -05:00
..
autogroup.h
clock.h
coredump.h
cpufreq.h	sched/fair: Remove redundant call to cpufreq_update_util()	2020-01-17 10:19:22 +01:00
cputime.h
deadline.h
debug.h	kernel: rename show_stack_loglvl() => show_stack()	2020-06-09 09:39:13 -07:00
hotplug.h
idle.h
init.h
isolation.h	genirq, sched/isolation: Isolate from handling managed interrupts	2020-01-22 16:29:49 +01:00
jobctl.h
loadavg.h
mm.h	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
nohz.h	timers/nohz: Update NOHZ load in remote tick	2020-01-28 21:36:44 +01:00
numa_balancing.h
prio.h
rt.h
signal.h	exit: Factor thread_group_exited out of pidfd_poll	2020-07-07 11:58:17 -05:00
smt.h
stat.h
sysctl.h	kernel/hung_task.c: introduce sysctl to print all traces when a hung task is detected	2020-06-08 11:05:56 -07:00
task_stack.h
task.h	clone3: allow spawning processes into cgroups	2020-02-12 17:57:51 -05:00
topology.h	sched/topology: Kill SD_LOAD_BALANCE	2020-04-30 20:14:39 +02:00
types.h
user.h
wake_q.h
xacct.h